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EXHIBIT "B" <br /> 0�T R0( ,f <br /> uality (Yontrol inspection Inc. <br /> QCIS <br /> C a. <br /> MAIN OFFICE <br /> ❑1295 NORTH EMERALD,BLDG.0•MODESTO,CALIFORNIA 95351 •PHONE:(209)527-4940 <br /> BRANCHES <br /> STOCKTON(209)466-8378 • MERCED(209)723-2425 <br /> QCI#: G90-649 November 21, 1990 <br /> FOR: R.B. Welty & Associates <br /> 521 13th Street <br /> Modesto, CA 95353 <br /> PROJECT: Designated Remainder <br /> Minor Sub No. 90-122 <br /> East of Carrolton Rd. & South of Mello Ave. <br /> San Joaquin County <br /> SUBJECT: Percolation Testing <br /> On October 23, 1990, representatives of Quality Control <br /> Inspection, Inc. prepared percolation bore holes using a truck <br /> mounted drill rig. The percolation test hole was located as marked <br /> on a site plan provided by R. B. Welty of an area referred to as <br /> a Designated Remainder. This percolation test was performed as <br /> part of a soil suitability study. The test hole was presaturated <br /> 24 hrs before percolation testing commenced on November 15, 1990. <br /> The percolation testing was conducted according to San Joaquin <br /> County Department of Environmental Health regulations and was <br /> witnessed and observed by Hector Castro from the County Department <br /> of Environmental Health. <br /> One exploratory test hole and one percolation test hole were <br /> drilled using 811 diameter solid stem auger to depths of ten feet <br /> and four feet, respectively. The percolation test hole was sleeved <br /> with 4" diameter perforated pipe to prevent a potential cave-in, <br /> thus insuring test hole integrity. Gravel was added to the bottom <br /> of the hole and placed in the annular space between the perforated <br /> pipe and the bore hole. Please find attached, the Field <br /> Percolation Testing Report (signed by the San Joaquin County <br /> representative) , indicating the test hole location, percolation <br /> rate and recommended sewage disposal area. <br /> 'Z <br /> 9 <br /> QUAL -TY ,,CONTROL INSPECTION, INC. <br /> �j-- David Jordan, Civil Testing <br /> QUA ITY177� <br /> Je s Wry, INSPECTION, INC. <br /> y, P.E. <br /> JW/dj <br /> cc: 2 Client <br /> Our reports and letters are submitted as the confidential property of our clients for their exclusive use.Any publication or reproduction of statements,conclusions or extracts from or <br /> regarding our reports or letters is reserved,contingent upon the written authorization of Quality Control Inspection,Inc. <br />